duckrider Posted February 23, 2016 Share #21 Posted February 23, 2016 Advertisement (gone after registration) EL ectrolytical OX ydatet AL uminium Thomas Link to post Share on other sites More sharing options...
Advertisement Posted February 23, 2016 Posted February 23, 2016 Hi duckrider, Take a look here Precautions for M6 Zinc top-plate. I'm sure you'll find what you were looking for!
Matlock Posted February 23, 2016 Share #22 Posted February 23, 2016 Eloxal is anodisation which applies to Aluminium only - Leica top plates were not (until recently) made from Aluminium so Black Chrome is applied as the black finish to black cameras unless they were Black Paint versions(see also: http://holzapfel-group.com/en/surfaces/decorative-surfaces/black-chrome.html). The finish is apparently applied onto a Nickel coating which itself is applied to the base (brass or Zinc). Eloxal is a superb and sometimes hardwearing finish - some underwater housings use it - but only available on Aluminium. Eloxal is a German form of Anodising which can also be applied to Zinc (and Titanium etc.). But only Leica will know . Link to post Share on other sites More sharing options...
Matlock Posted February 23, 2016 Share #23 Posted February 23, 2016 This topic has got me interested enough to do some research (should have done that before I made my original comment ). It seems that Eloxal can be applied to Zinc but NOT Copper, as Brass is an alloy of Copper and Zinc, I think it is highly unlikely that Leica would anodise the Zinc cameras and "Black Chrome" the Brass ones. I, therefore, withdraw my comment (that is until someone comes up with a better answer). Moral: Always engage brain before mouth is in gear . Link to post Share on other sites More sharing options...
Susie Posted March 5, 2016 Share #24 Posted March 5, 2016 My M6, that I bought new in 1996 is a little "silvery" round the edges, and there is some tiny bubbling round the shutter speed dial, but I certainly don't let it worry me. Actually, the odd thing is, I rather like these reminders of past trips with the camera. This M6 and my 'black' lenses - all from the 1990's, get shockingly treated really, knocking about in rucksacks and on the motorcycle, whereas my older chrome Leicas, all bought used, are much more cosetted. I have just checked the instruction booklet that came with my M6 with regards to finish. I quote: "Body of die-cast aluminium. Top panel 0.8mm die-cast zinc, bottom panel 0.8mm brass. Black or silver chromium and titanium finish". It goes on to say that the Titanium M6 has a brass "cover plate". Make of that what you will! Susie Link to post Share on other sites More sharing options...
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